Old Greenwich Weather in May

The climate in Old Greenwich during May can be summarized as mild and wet.

May is in the spring in Old Greenwich and is typically the 5th warmest month of the year. Daytime maximum temperatures average around 21°C (70°F), whilst at night 8°C (46°F) is normal.

On average May is the wettest month of the year in Old Greenwich with around 126mm 5 inches of rain making it a wet time to visit. This rainfall is typically spread over 11 days, although this may vary considerably.

On the flip side this corresponds to an average of 8.9 hours of sunshine per day.

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Old Greenwich in May 2024.